Great timing, since I just wrapped up MHWilds for now. I'm definitely gonna be retouching Ash too if you know what I mean.
I'm not super keen on more Archimedea, especially with defense and assassination in the rotation. I do like the sticker system conceptually - it reminds me of Smash Brawl. More mod systems!
His tactical alert variant has no ability immunity. I just hosed him down with Mesa.
Edit: whoops, looks like the event ended right as I replied. I hope you figured out a build!